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Why genetic variation is still possible if self pollination occurs?
Wiki User
∙ 13y ago
This is because during meiosis there is (mostly) genetic variation by means of crossing over, independent assortment and mutations. As two gametes are being fused, the end product will be different from the parent, because the factors mentioned above ensure this.
For a bit more info:
The end product might not always be different as sometimes (in a very rare case), independent assortment and mutations might not occur to the two gametes which are to be fertilised, and if the two gametes both contained chromosomes on which crossing over did not occur, and if these two gametes were to fertilise, then the product would be genetically the same as the parent plant.
Wiki User
∙ 13y ago
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Does random alignment of chromosomes during Meiosis produce genetic variations?
In meiosis crossing over may occur at certain points on a chromatid. Crossing over is where variation occurs in allele combination. When a Zygote is formed alleles from mother and father cross over.. this is why you may have some features resembling your father and your mother... or grandma or grandpa... etc... There can be mutations ( messups ) in mitosis but the actual process results in no genetic variation. AP bio
What is the difference between genetic defects and chromosomal abnormalities?
Those terms are synonymous - but genetic defect is more likely to be used to describe a physiological deformity that results from genetics, whereas a chromosomal abnormality might not produce a visible deformity.
How does variation occur?
Variation or mutation occurs within the DNA. It is a natural result of the replication process, or the copying of one DNA strand to make new DNA during reproduction. If the new mutation ends up making some kind of variation that does not kill the organism, then the variation will be passed on to new generations. This is how new traits are formed. When the variation is actually more useful than a trait that the organism's parents had, that new variation will be passed along as a survival trait.
How genetic information is kept constant through cell division?
when cell division occurs chromosomes segregate & also the genes present in pairs on then as the genes store genetic information it is kept constant though cell division
What occurs in the nucleus A. transcription and replication of genetic material B.translation only C. assembly of amino acids into protein d. replication of genetic material E transcription only?
The Necleus is the brain of a cell. Nothing really occurs in the necleus, all the information to run the cell is found there, the neclues tells the cell what to do. I would say B. Translation only. I'm not sure through... maybe you should google "what occurs in the necleus" and use a different source.
Genetic variation occurs when chromosomes are shuffled in and fertilization?
genetic variation occurs when chromosomes are shuffled in_and fertilization
Does meiosis have variation?
During meiosis, genetic recombination of homologous chromosomes occurs. So meiosis does result in genetic variation. After prophase I, during which crossing over occurs, every chromosome will have some maternal DNA and some paternal DNA.
What can a genetic mutation cause?
A genetic mutation can cause a variation, which may be harmless, or may be harmful, depending on where on the DNA molecule it occurs.
What genetic mutations can cause?
A genetic mutation can cause a variation, which may be harmless, or may be harmful, depending on where on the DNA molecule it occurs.
What type pf pollination occurs in flamboyant flowers?
the pollination process that occurs in flamboyant flowers is insect pollination
Does variation occur in plants?
Much more morphological variation occurs in plants. Genetic variation is the big variation in plants because of polyploidy; this doubling, tripling and halving of chromosome number in the mating of two plants not only leads to great variation in genetic material, but also leads to great speciation in plants.
Why does variation occurs?
Variation occurs because of mutations in the genetic code.Mutaions occur when one of the nitrogen bases are in the wrong spot like if aa is next to each other in the wrong sequence then the mutations occur
Which happens first pollination or fertilation?
Pollination. Fertilization is what occurs after pollination.
Where do pollination is taking place?
self -pollination occurs within the same flower or same plant
What event in meiosis leads to genetic variation in organisms?
Genetic crossover occurs, which causes a sharing and transference of genetic information between maternal and paternal copies of chromosomes and further enhances the genetic variability of their offspring.
Disadvantages of budding?
budding does not allow any type of genetic variation. The new generation is naturally genetically identical to the primary one(clone) so as with binary fission there is not as much genetic variation in offspring as occurs with sexual reproduction.
When does genetic variation occur?
It happnes when genes are being passed down from the parent to the offspring and environmental differences alter the genes being passed down
